On the PC laptops that I deal with there is a BIOS key function that changes 
which display is used by the machine.  I wonder if Apple systems have a similar 
keyboard hotkey function for turning display mirroring on/off.

> This is kinda a question for Derek (because I know he had the same
> problem) but if anyone else can answer (and perhaps help both of us)
> that would be cool.
> 
> I'm trying to use the external monitor output of my laptop, which runs
> an ATI Rage 128 Mobility.  I'm using XF86 4.3 and a 2.4 kernel.  I'm
> using the framebuffer driver for the card though.  The internal driver
> doesn't seem to work that well. (Internal to X)  I'm running Yellowdog
> 3.0.
> 
> When I boot with the external monitor connected I got some BIOS looking
> messages on a white screen with black text.  Otherwise it isn't doing
> anything much.  Especially after the machine goes to sleep.  I do know
> about the m3mirror utility.
> 
> 	Thanks,
> 		Ted
>